Die-cast. For A section. 1/2"" V-Belts. No. 500A5: Outer Diameter: 5"", Bore Size: 1/2"", Type: A No. 500A6: Outer Diameter: 5"", Bore Size: 5/8"", Type: A No. 500A7: Outer Diameter: 5"", Bore Size: 3/4"", Type: A No. 550A5: Outer Diameter: 5-1/2"", Bore Size: 1/2"", Type: A No. 550A6: Outer Diameter: 5-1/2"", Bore Size: 5/8"", Type: A No. 550A7: Outer Diameter: 5-1/2"", Bore Size: 3/4"", Type: A No. 600A5: Outer Diameter: 6"", Bore Size: 1/2"", Type: A No. 600A6: Outer Diameter: 6"", Bore Size: 5/8"", Type: A No. 600A7: Outer Diameter: 6"", Bore Size: 3/4"", Type: A No. 700A5: Outer Diameter: 7"", Bore Size: 1/2"", Type: A No. 700A6: Outer Diameter: 7"", Bore Size: 5/8"", Type: A No. 700A7: Outer Diameter: 7"", Bore Size: 3/4"", Type: A No. 800A5: Outer Diameter: 8"", Bore Size: 1/2"", Type: A No. 800A6: Outer Diameter: 8"", Bore Size: 5/8"", Type: A No. 800A7: Outer Diameter: 8"", Bore Size: 3/4"", Type: A No. 800A8: Outer Diameter: 8"", Bore Size: 1"", Type: A

Features:

• Single grooved pulley with slotted headless set screws